Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2007
Forfattere
Lars Tørres HavstadSammendrag
Foredrag om halmbehandling i engsvingel og timotei
Forfattere
Lars T. HavstadSammendrag
Different methods of straw residue management were evaluated in field trials with seed crops of timothy (Phleum pratense L.) and meadow fescue (Festuca pratensis Huds.) in SE Norway during 2000-2005. Compared to straw removal, which up to now has been the most common straw management practice in seed production of the two species, straw chopping and spreading at the back of the combiner during seed harvest did not reduce seed yield in the following year when stubble height was kept at a low level (preferably less than 10 cm). However, in order for newly developed tillers to rapidly penetrate the straw layer in autumn, the chopped straw had to be spread uniformly in the field. The experiments did not provide any support for an extra input of nitrogen in autumn, either in timothy or meadow fescue, when the straw was chopped rather than removed. In both species, also burning of straw and stubble soon after seed harvest was an efficient and fast clean-up method in the field after harvest. However, due to problems with smoke emission, especially near traffic roads and populated areas, field burning is not recommended as a preferable straw management method.
Forfattere
Lars Tørres HavstadSammendrag
Different methods of straw residue management were evaluated in field trials with seed crops of timothy (Phleum pratense L.) and meadow fescue (Festuca pratensis Huds.) in SE Norway during 2000-2005. Compared to straw removal, which up to now has been the most common straw management practice in seed production of the two species, straw chopping and spreading at the back of the combiner during seed harvest did not reduce seed yield in the following year when stubble height was kept at a low level (preferably less than 10 cm). However, in order for newly developed tillers to rapidly penetrate the straw layer in autumn, the chopped straw had to be spread uniformly in the field. The experiments did not provide any support for an extra input of nitrogen in autumn, either in timothy or meadow fescue, when the straw was chopped rather than removed. In both species, also burning of straw and stubble soon after seed harvest was an efficient and fast clean-up method in the field after harvest. However, due to problems with smoke emission, especially near traffic roads and populated areas, field burning is not recommended as a preferable straw management method.
Forfattere
Arne Fjellberg Per Holm Nygaard Odd Egil StabbetorpSammendrag
Det er ikke registrert sammendrag
Forfattere
Steinar Dragland Arvid OdlandSammendrag
Det finnes et landbruksprodukt som er sterkt etterspurt i deler av USA og Canada, men som synes å være nesten ukjent i Europa. Produktet har blitt beskrevet som ”en smakfull og næringsrik grønnsak”. Råvaretilgangen og produksjonsmulighetene for dette produktet er bedre i Norge enn i de fleste andre Vest-Europeiske land. Råvaren er bregnen strutseving som er viltvoksende i Norden, Øst-Europa, deler av Asia og et område i Øst-Canada/USA.
Forfattere
Steinar Dragland Arvid OdlandSammendrag
Det er ikke registrert sammendrag
Forfattere
Sølvi SvendsenSammendrag
Det er ikke registrert sammendrag
Forfattere
Reidun Pommeresche Sissel Hansen Anne-Kristin Løes Tore SveistrupSammendrag
Med litt trening og kunnskap kan du se effekter av drifta på jordstruktur, rotutvikling og meitemarkens arbeid i jorda. Særlig der veksten er dårlig kan et jordprofil gi informasjon om hvor problemene ligger. Det kan være spennende å grave et slikt hull i jorda, særlig sammen med andre praktikere og rådgivere. Da blir det gjerne gode diskusjoner om agronomi, drift og maskinpark.
Forfattere
Bent J Nielsen Jens G Hansen Hans Pinnschmidt Ragnhild Nærstad Arne Hermansen Vinh Hong Le Asko HannukkalaSammendrag
Influence of weather conditions on sporangia production, release, viability and infection of potato late blight (Phytophthora infestans) was investigated in Denmark, Norway and Finland using Burkard spore traps and exposure of trap plants in field plots. High amounts of sporangia were trapped after night with long periods with high relative humidity. Sporangia produced in one humidity period were mainly released at the first humidity drop in the morning hours, but there were also some "delayed sporangia release". Local new infections occurred mainly during the morning hours when the leaves were still wet. On many days sporangia did not survive until the afternoon and the results indicate that conditions for survival of sporangia and infection are major bottlenecks for the spread and development of the disease
Sammendrag
Empirical evidence that the N dissipation from dairy production depends tightly on the segregation of animals from plant production is provided